Locomotive-cab squirt.



F. w. Bow/Inns.

LOCOMOTIVE CAB SQUIRT.

APPLICATION FILED SEPT-2h I9l4.

2 SHEETS-SHEET l.

Wan Ems Patented Oct. 5, 1915.

F. W. EDWARDS.

LOCOMOTIVE CAB SQUIRT. APPLICATION miqszrmzl. m4.

Patented Oct. 5, 1915.

2 SHEETS-SHEET 2- K l' 4 m A INVENTOR Fm W. HWABDS, OF CHICAGO, IL'LINOIS, ASSIGNOB TO THE CHICAGO LUTRICATOR. comm, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

LOGOHOTIVE-CAB SQUIRT.

a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Locomotive-Cab Squirts, of which the following is a full, clear, and exact description.

' Under a Federal law administered by the Interstate Commerce Commission, it is required that railway locomotives shall be equipped with safe and suitable boilers and appurtenances, andas an outgrowth of this law locomotives are provided with hose for supplying water for washing the cab deck, sprinkling the coal in the tender to lay the dust, and for putting out the fire in the firebox in emergencies requiring its extinglushment.

In accordance with prevalent practice, the hose connection has been made 'withthe 10 comotive injector, and the water supplied has been under high pressure and dangerously hot, so that the engineer and fireman have been exposed to danger from scalding, and the hose has been uncomfortably hot to handle, and exposed to rapid deterioration and sudden bursting by reason of the heat and pressure of the water.

The object of the present invention is to meet the requirements of the law in a practical and eflicient way, and to remove the dangers and disadvantages incident to present practice, and to supply water at a lower temperature and lower but effective pressure, so that the hose maybe comfortably handled, and the engine crew shielded from danger. The invention consists of a locomotive cab squirt, so called, embodying means by which water under high temperature and high pressure maybe mixed with cooler water from a separate source of supply, and the high temperature and high pressure reduced, so that the water may be handled safely and without danger to the apparatus or the attendants, as I will. nowproceed to explain and finally claim.

, In the accompanying drawing illustrating the invention, in the several figures of which like parts are similarly designated, Figure 1 is a side elevation, in outline, of the rear end of a railway locomotive showing one form of installation of the apparatus of this invention, portions of the cab being broken Specification of Letters Patent.

Application filed September 21, 1914. Serial No. 862,844.

away. Fig. 2 is a vertical section, and Fig. 3 1s a partial horizontal section, on a larger scale, lllustrating a temperature and pres- .sure reducing device, or reducer, herein so called for brevitys sake.

1 indicates a portion of a railway locomotive boiler; 2 an ordinary" boiler checkvalve; 3 the water delivery pipe leading from the in ector 4' into the boiler through the check-valve; 5 is the steam supply pipe for the lnjector; 6 and 7 extension rods for operating the injector-valves, and 8 the water supply pipe for the injector, said water supply pipe being designed to be connected in any usual way with a source of supply of cold water for the boiler, such as the water tank on the tender. 2

At some point under the influence of the injector, and preferably in the water delivery pipe 3, between the injector and the boiler check-valve, is a coupling 9 to which is secured the pipe 10, preferably of smaller diameter than the water delivery pipe, and this pipe 10 is connected with the inlet nipple 11 of a suitable temperature and pressure reducing device 12, herein referred to as the reducer. The reducer is connected by an elbow 13 andcoupling 14 with the water supply pipe 8 next to the feed water hose connection 15 or other device for connecting the boiler with its water supply, and between said device and the injector. A nipple 16 is connected with the reducer, preferably opposite the inlet nipple 11, and this nipple 16 has connected to it a pipe 17 which has applied to it the controlling-valve 18 of any suitable sort, such as an ordinary globe valve or angle valve, and this last mentioned valve has applied to it a length of' pressure coming into the reducer through the pipe 10 when the valve 18 is closed. The reducer also includes a jet 23 having a small longitudinal passage through it, and the jet 24 arranged opposite the jet 23, and in alinement with it and having a flaring mouth adjacent to the flaring discharge end of the jet 23, and these two jets at their flared ends are separated, preferably by a narrow space.

' I have thus described one installation for carrying out my invention, but ms'h tfi be understood as not limiting the lnvertxon to the details of construction; but the mechanism shown embodies the principle of the invention in an efficient way.

When it is desired to use water for washing the cab deck or for sprinkling the coal in the locomotive tender, or to put out the fire in the fire-box of the locomotlve, as when the water supplv for the boiler becomes dangerously reduced or other eme encles arise, the valve 18 is opened, and while the injector is operating, a portlon of the water of hi h temperature and high pressure passing om the injector to the boiler is diverted through the pipe 10 mto the reducer, and its alined jets thus become a suction device which draws a portion of the cooler water from the pipe 8 into the reducer past the check-valve 22, which automatically opens under these conditions, and whlle the pressure coming through the pipe 10 1s reduced by the restricted opemng 1n the et 23, the temperature is also lowered by mflux of the cooler water through the p1p e 8, and the water is admitted to the hose at a pressure suflicient to clean the cab deck, or s rinkle the coal in the tender, or put out the fire in the fire-box, as may be required, and the temperature is also so far reduced that the hose may be handled comfortably, and all liability of the engine crew to in ury from escaping steam, or scalding water, or bursting hose is overcome.

' When the squirt is not to be used, the valve 18 is closed and the supply thus cut off. It is to be noted, therefore, that the introduction of the mechanism into the injector circuit does not 1n any way interfere with the operation of the injector for furnishing water to the boiler.

The fact that the injector is-used many times when the cab squirt is not used, re-

quires the use of the check or automatic control-valve 22 located between the water chamber of the. reducer and the source of supply of cooler water.

As already suflicie'ntly indicated, the high temperature and high pressure water may be taken at any point under the influence of the injector when working, and the cooler Water may be derived from any suitable source; but in the interest of economy and the avoidance of the expense incident to the use of additional parts, I prefer to use an installation substantially such as illustrated.

What I claim is 1. A locomotive cab squirt, having a temperature and pressure reducing device interposed. between a source of supply of waterat high temperature and high pressure and a source of supply of cooler water and in to the injector,

mingled two bodies of water from said re-' du device.

3. locomotive cab squirt, having a reducer interposed between a source of supply of water at high tem erature and high pressure and a source 0 supply of cooler water and communicating with both sources, an outlet extending from said reducer to the place of delivery of the commingled waters, a valve arranged in'said outlet at such place for controlling the delivery, and a check-valve interposed between the reducer and the cooler water inlet to the reducer.

4. A locomotive cab squirt, having a reducer interposed between a source of supplyof water at high temperature and high .pressure and a source of supply of cooler a reduction of the'temperature and pressure of the water delivered by the reducer. v

5. The combination of an injector, a water supply therefor, a water delivery pipe leading from the injector, means to supply steam a reducer, separate means to connect said reducer with the water delivery pipe and the water supply, and means to render the reducer operative to deliver 4 water through it at reduced temperature and pressure.

6. The combination of an injector, a water supply therefor, a water delivery pipe leading from the injector to a water consumer, means to supply steam to the injector, a reducer connected with said water supply at one point and with said water delivery pipe at another point, said reducer having an outlet alined with its connection with said water delivery pipe and a reducing jet and an outlet jet alined with one another and with the intersecting connection with the water delivery pipe, and means to render the reducer operative when the injector is working. v

7 The combinati n of an injector, awater supply therefor, a water delivery pipe conmeeting the injector and a water consumer, means to supply steam to the injector, a reducer connected with the injectors water supply and its water delivery pipe, an automatic valve interposed between the water steam to it, a reducer connected with the injectors water supply and its water delivering means, an automatic valve interposed between the water supply and said reducer, a delivery means for said reducer, a hose,

and a controlling-valve interposed between the hose and the reducers delivery means.

9. The combination with a steam generator, a water supply therefor, an injector interposed between said generator and water supply and communicating with I both,

means to take water from the injector at high temperature and pressure and from the water supply at a lower temperature and little or no pressure and mingle them and reduce the high temperature and pressure,

.,and means to discharge the water, when its temperature and pressure are reduced, under its reduced pressure. I

In testimony whereof I have hereunto set my hand this 19th day of September A. D.

FRANK W. EDWARDS. Witnesses:

FRANK W. FURRY, WILLIAM S. FUBRY. 

